Hostname: page-component-7c8c6479df-7qhmt Total loading time: 0 Render date: 2024-03-28T13:40:40.514Z Has data issue: false hasContentIssue false

Genotype by mating type interaction for litter size in Landrace and Large White sows

Published online by Cambridge University Press:  09 March 2007

T. W. Lewis*
Affiliation:
University of Nottingham, Division of Agricultural and Environmental Sciences, School of Biosciences, Sutton Bonington Campus, Loughborough LE12 5RD, UK Roslin Institute (Edinburgh), Roslin, Midlothian EH25 9PS, UK
J. Wiseman
Affiliation:
University of Nottingham, Division of Agricultural and Environmental Sciences, School of Biosciences, Sutton Bonington Campus, Loughborough LE12 5RD, UK
J. A. Woolliams
Affiliation:
Roslin Institute (Edinburgh), Roslin, Midlothian EH25 9PS, UK
Get access

Abstract

Data obtained from a detailed base from a commercial breeding company of Landrace and Large White purebred nucleus sows were used to estimate genetic parameters of piglet number born alive (NBA) following artificial insemination and natural service. Heritabilities were small but significantly different from zero, and similar to literature estimates. The genetic correlation (rG) of NBA after AI or natural service using pooled data was 0·71 and was significantly different from one (P<0·01) but not significantly different between breeds (P>0·1). It is concluded that mating type may result in a re-ranking of sow genetic merit for NBA.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Chen, P., Baas, T. J., Mabry, J. W., Koehler, K. J. and Dekkers, J. C. M. 2003. Genetic parameters and trends for litter traits in US Yorkshire, Duroc, Hampshire, and Landrace pigs. Journal of Animal Science 81: 4653.Google Scholar
Falconer, D. S. and Mackay, T. F. C. 1996. Introduction to quantitative genetics, fourth edition. Longman, Essex.Google Scholar
Gilmour, A. R., Gogel, B. J., Cullis, B. R., Welham, S. J. and Thompson, R. 2002. ASReml user guide release 1·0. VSN International Ltd, Hemel Hempstead.Google Scholar
Haley, C. S., Avalos, E. and Smith, C. 1988. Selection for litter size in the pig. Animal Breeding Abstracts 56: 317332.Google Scholar
Hanenberg, E. H. A. T., Knol, E. F. and Merks, J. W. M. 2001. Estimates of genetic parameters for reproduction traits at different parities in Dutch Landrace pigs. Livestock Production Science 69: 179186.CrossRefGoogle Scholar
Kemp, B. and Soede, N. M. 1996. Relationship of weaning-to-estrus interval to timing of ovulation and fertilization in sows. Journal of Animal Science 74: 944949.Google Scholar
Kerr, J. C. and Cameron, N. D. 1995. Reproductive performance of pigs selected for components of efficient lean growth. Animal Science 60: 281290.Google Scholar
Kerr, J. C. and Cameron, N. D. 1996. Genetic and phenotypic relationships between performance test and reproduction traits in Large White pigs. Animal Science 62: 531540.Google Scholar
Lende, T.van der, Willemsen, M. H. A., Arendonk van, J. A. M. and Haandel van, E. B. P. G. 1999. Genetic analysis of the service sire effect on litter size in swine. Livestock Production Science 58: 9194.CrossRefGoogle Scholar
Mercer, J. T. and Crump, R. E. 1990. Genetic parameter estimates for reproduction traits in purebred Landrace pigs. Proceedings of the fourth world congress on genetics applied to livestock production, Edinburgh, vol. 15, pp. 489492.Google Scholar
Roehe, R. and Kennedy, B. W. 1995. Estimation of genetic parameters for litter size in Canadian Yorkshire and Landrace swine with each parity of farrowing treated as a different trait. Journal of Animal Science 73: 29592970.CrossRefGoogle ScholarPubMed
Rydhmer, L., Lundeheim, N. and Johansson, K. 1995. Genetic parameters for reproduction traits in sows and relations to performance-test measures. Journal of Animal Breeding and Genetics 112: 3342.CrossRefGoogle Scholar
Serenius, T., Sevón-Aimonen, M. -L. and Mäntysaari, E. A. 2003. Effect of service sire and validity of repeatability model in litter size and farrowing interval of Finnish Landrace and Large White populations. Livestock Production Science 81: 213222.CrossRefGoogle Scholar